The scent of women’s tears temporarily reduces sexual arousal and testosterone production in men.
12
Coins usually survive in circulation for about 30 years.
66
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
The Gmail logo was designed the night before it was launched.
68
Pumbaa from "The Lion King" was the first character to fart in a Disney movie.
31
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Rio de Janeiro was once capital of Portugal, making it the only European capital outside of Europe.
9